I am not familiar. This article makes a lot of references comparing in to second life.
It’s only been live for a few days but already it feels like what the early-millennium online social experiment Second Life could have been if it had been built by game designers rather than Californian internet eggheads.
It takes more than fancy avatars and dancing in a club to be a metaverse. I'll probably keep tabs on it to see if they branch out more, but as is, it wouldn't hold my attention for more than 5 minutes.